<span>How fast (in miles per hour) did he drive the first 3 hours? "He drove 56mph the first 3 hours."
Explain how you got your answer. "I got my answer by divding the miles he drove (168) by how many hours it took (3) to get 56."
If he continues to drive at that rate, how many hours will it take him to go the 280 more miles? "It will take him 5 more hours."
Explain how you got your answer. "I divided the miles he needs to travel (280) by the mph he would be going (56)."</span>
Answer:
cuboid
Step-by-step explanation:
Answer:
x=4 x=-1
Step-by-step explanation:
x^2-3x-4=0
x^2-4x+x-4=0
x(x-4) + 1(x-4)=0
x+1=0
x=-1
x-4=0
x=4
Answer:
Slope: undefined
Equation: x=-3
Step-by-step explanation:
To find the line that passes through the points, you first want to find the slope. The formula for slope is 
. Once we have the slope, we can use any given point to plug in to find the y-intercept.
We can see that the slope is undefined. If we look at the point, we notice that they both have the same x-coordinate. This let's us know that the equation is x=-3.
if it is solution point (4, –2) must satisfy both equations
(1) –3x – 2y = –8-->-3*4-2*(-2)=-8
-12+4=-8 then-->-8=-8 ok
(2) y = 2x – 5
-2=2*4-5=3---------->-2 is not 3
the point (4, –2) is not solution of the system of equations
